Problems with activating new apps

hello guys,
my problem is i have the snapd app installed, same like the snap - store…but i ve using this for installing apps like WALC or whatsdesk - it will be installed and i cant open it or otherwise i dont find it on my distribution… i cant handle it on my systemstartup or something… is invisible… why?

Hi, are you able to open a terminal window and type the following commands and paste the output here for us to see?

snap version
snap list